hey guys i got my 2 dd 1508's installed. they are dual 4 ohm with carbon fiber caps. i have them hooked yp to a DD m3. i have some decent power going until they are fully broken in i will put 1k to each ive turned it up a few timd and they bottom out easy. is it just cause they have too much power or box? the box is 1.75 tuned between 35-40 hz. could it be because of the amp tuning? what could help.